Display panel and display device

ABSTRACT

A display panel a display device are provided. The display panel includes a plurality of pixel units arranged in a row direction and in a column direction, the display panel includes a display region. An edge of the display region includes a fold line formed by connecting a line segment extending in the row direction and a line segment extending in the column direction, a parallelogram region formed in the display region taking two adjacent line segments as adjacent sides includes the pixel units; directions from an intersection point of the two adjacent line segments to end points of the two adjacent line segments other than those at the intersection point are a first direction and a second direction, respectively; in the parallelogram region, aperture ratios of the pixel units arranged in at least one of the first direction and the second direction increase gradually.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation of U.S. Ser. No. 16/330,522filed on Mar. 5, 2019, which is a national stage application of PCTinternational patent application PCT/CN2018/088433 filed on May 25,2018, which claims priority to the Chinese patent application No.201710756459.8, filed on Aug. 29, 2017, the entire disclosure of whichis incorporated herein by reference as part of the present application.

TECHNICAL FIELD

At least one embodiment of the present disclosure relates to a displaypanel and a display device.

BACKGROUND

With an expansion of application fields of display products, somedisplay manufacturers have begun to design and produce a display productwith an irregular display region, that is, a shape of the display regionand a shape of a display substrate thereof are non-rectangular shapes,such as a circular or a polygon, etc. The display effect of a displaydevice having an irregular display region needs to be improved.

SUMMARY

At least one embodiment of the present disclosure provides a displaypanel, and the display panel includes a plurality of pixel unitsarranged in a row direction and in a column direction. The display panelincludes a display region, an edge of the display region includes a foldline formed by connecting a line segment extending in the row directionand a line segment extending in the column direction, a parallelogramregion formed in the display region taking two adjacent line segments asadjacent sides includes a plurality of rows and at least one column ofthe pixel units, or at least one row and a plurality of columns of thepixel units; directions from an intersection point of the two adjacentline segments to end points of the two adjacent line segments other thanthose at the intersection point are a first direction and a seconddirection, respectively; in the parallelogram region, aperture ratios ofthe pixel units arranged in at least one selected from the groupconsisting of the first direction and the second direction increasegradually.

For example, the row direction and the column direction areperpendicular to each other, and the parallelogram region is arectangular region.

For example, each of the pixel units includes a plurality of sub-pixelsof multiple colors arranged in the row direction, and in theparallelogram region, aperture ratios of the sub-pixels having a samecolor arranged in at least one selected from the group consisting of thefirst direction and the second direction increase gradually.

For example, each of the pixel units includes a plurality sub-pixels ofmultiple colors arranged in the row direction, and in the parallelogramregion, each sub-pixel in each of the pixel units has a same apertureratio.

For example, an overlapping portion of an edge of the parallelogramregion and the edge of the display region includes one first linesegment extending in the row direction and two second line segmentsextending in the column direction; in the parallelogram region, two endpoints of the first line segment are respectively connected with the twosecond line segments, and in a direction from any end point of the firstline segment to a midpoint of the first line segment, the apertureratios of the pixel units increase gradually.

For example, each of the pixel units in the parallelogram regionincludes a light-shading structure, and light-shading areas oflight-shading structures of the pixel units arranged in at least oneselected from the group consisting of the first direction and the seconddirection decrease gradually, so that the aperture ratios increasegradually.

For example, a light-shading layer is between adjacent ones of the pixelunits, and a material of the light-shading structure is the same as amaterial of the light-shading layer.

For example, the light-shading structure includes at least one sublight-shading structure extending in the column direction, and the sublight-shading structure has a same shape and a same size as a sublight-shading layer extending in the column direction included in thelight-shading layer.

For example, the light-shading structure includes a plurality of sublight-shading structures each of which extends in the column direction,and in the row direction, the plurality of sub light-shading structuresare arranged continuously or spaced apart from each other.

For example, the light-shading structure includes at least one first sublight-shading structure extending in the row direction and at least onesecond sub light-shading structure extending in the column direction.

For example, the light-shading structure includes a plurality of firstsub light-shading structures, and in the column direction, the pluralityof first sub light-shading structures are arranged continuously orspaced apart from each other.

For example, the light-shading structure includes a plurality of secondsub light-shading structures, and in the row direction, the plurality ofsecond sub light-shading structures are arranged continuously or spacedapart from each other.

For example, a shape of the display region includes a non-rectangularshape.

At least one embodiment of the present disclosure further provides adisplay device, and the display device includes the display panelprovided by any one of the embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to clearly illustrate the technical solution of the embodimentsof the disclosure, the drawings of the embodiments will be brieflydescribed in the following; it is obvious that the described drawingsare only related to some embodiments of the disclosure and thus are notlimitative of the disclosure.

FIG. 1A is a schematic diagram of a partial display panel in a design ofa linear light-shading layer structure;

FIG. 1B is a schematic diagram of a partial display panel in a design ofa light-shading layer structure with a curved edge;

FIG. 1C is a planar view of an entire structure a display panel;

FIG. 1D is an amplified view of a region C in the display panelillustrated in FIG. 1C;

FIG. 2A is a partial planar view of an edge of a display region in adisplay panel provided by an embodiment of the present disclosure;

FIG. 2B is a partial planar view of an edge of a display region in adisplay panel provided by an example of an embodiment of the presentdisclosure;

FIG. 2C is a partial planar view of an edge of a display region in adisplay panel provided by another example of an embodiment of thepresent disclosure;

FIG. 2D-FIG. 2F are partial planar views of an edge of a display regionin a display panel provided by further another example of an embodimentof the present disclosure;

FIG. 2G is a partial planar view of an edge of a display region in adisplay panel provided by further another example of an embodiment ofthe present disclosure;

FIG. 3A is a schematic diagram of a light-shading structure provided byan example of an embodiment of the present disclosure; and

FIG. 3B is a schematic diagram of a light-shading structure provided byanother example of an embodiment of the present disclosure.

DETAILED DESCRIPTION

In order to make objects, technical details and advantages of theembodiments of the disclosure apparent, the technical solutions of theembodiments will be described in a clearly and fully understandable wayin connection with the drawings related to the embodiments of thedisclosure. Apparently, the described embodiments are just a part butnot all of the embodiments of the disclosure. Based on the describedembodiments herein, those skilled in the art can obtain other embodiment(s), without any inventive work, which should be within the scope of thedisclosure.

Unless otherwise defined, all the technical and scientific terms usedherein have the same meanings as commonly understood by one of ordinaryskill in the art to which the present disclosure belongs. The terms“first,” “second,” etc., which are used in the description and theclaims of the present application for disclosure, are not intended toindicate any sequence, amount or importance, but distinguish variouscomponents. The terms “comprise,” “comprising,” “include,” “including,”etc., are intended to specify that the elements or the objects statedbefore these terms encompass the elements or the objects and equivalentsthereof listed after these terms, but do not preclude the other elementsor objects. “On,” “under,” “left,” “right” and the like are only used toindicate relative position relationship, and when the position of theobject which is described is changed, the relative position relationshipmay be changed accordingly.

FIG. 1A and FIG. 1B illustrate two design modes aiming at alight-shading layer of an irregular display region. FIG. 1A is aschematic diagram of a partial display panel in a design of a linearlight-shading layer structure. As illustrated in FIG. 1A, a shadowregion is a non-display region provided with a light-shading layer 15, ablank region is a display region including a plurality of pixel units 10arranged in an array, and each of the pixel units 10 includes threesub-pixels 11 of red, green and blue (RGB). A boundary 12 between thelight-shading layer 15 and the display region is in a sawtooth shape,the light-shading layer 15 with a sawtooth shape edge as illustrated inFIG. 1A is designed at an edge of the display region so as to form adisplay region that exhibits a non-rectangular shape, such as a circleor a polygon as a whole, and for example, a display effect that the edgeof the display region is approximately a curved edge is achieved.

In order to make it convenient for designing, a pixel structure in thedisplay region is usually in a conventional array structure, thus, adesign of a light-shading layer structure at a position where thedisplay region is in contact with a non-display region is required toachieve a display effect having a non-rectangular shape. In the study,inventor(s) of the present disclosure notices that upon the displaypanel designed by adopting the design scheme illustrated in FIG. 1Aplaying a function of display, a user may clearly see the sawtooth shapeof a display image at the edge of the display region, thus the user'sviewing experience is affected.

FIG. 1B is a schematic diagram of a partial display panel in a design ofa light-shading layer structure with a curved edge. As illustrated inFIG. 1B, the display panel is described by taking a case that an edge ofthe light-shading layer 15 is designed according to a curved edgeactually required by the display region, and the curved edge of thelight-shading layer 15 herein can avoid a case where the edge of thedisplay region is in a sawtooth shape.

However, inventor(s) of the present disclosure notices that the edge ofthe light-shading layer 15 is not in an edge of the pixel units 10, thelight-shading layer 15 have different light-shading areas for each ofthe sub-pixels 11 in the same pixel unit 10, thus in a user's eyes, acolor mixing ratio produced by the pixel units 10 at the edge of thedisplay region is affected by a position of the light-shading layer 15.

As illustrated in FIG. 1B, in one pixel 10 in a region A, an area of thered sub-pixel (R) 11 shaded by the light-shading layer 15 is larger thanan area of the green sub-pixel (G) 11 and an area of the blue sub-pixel(B) 11 shaded by the light-shading layer 15, thus users see a bluishdisplay image from the region A; however, in one pixel 10 in a region B,an area of the blue sub-pixel (B) 11 shaded by the light-shading layer15 is larger than an area of the green sub-pixel (G) 11 and an area ofthe red sub-pixel (R) 11 shaded by the light-shading layer 15, thususers see a reddish display image from the region B. Thus, existence ofa color cast problem mentioned above may affect the users' viewingexperience.

FIG. 1C is a planar view of an entire structure a display panel, andFIG. 1D is an amplified schematic diagram of a region C in the displaypanel illustrated in FIG. 1C. As illustrated in FIG. 1C and FIG. 1D, adesign scheme where the light-shading layer 15 with a linear edge isadopted, that is, the boundary between the light-shading layer 15 andthe edge of the display region is in a sawtooth shape, thus, a structurein a fine sawtooth shape at the edge of the display region in FIG. 1Ccan be seen. A shape of the display region is approximately circular.Upon the display panel playing a function of display, users can clearlysee the sawtooth shape of the display image at the edge of the displayregion, thus the users' viewing experience is affected.

At least one embodiment of the present disclosure provides a displaypanel and a display device, and the display panel includes a pluralityof pixel units arranged in a row direction and in a column direction.The display panel includes a display region, an edge of the displayregion includes a fold line formed by connecting a line segmentextending in the row direction and a line segment extending in thecolumn direction. A parallelogram region formed in the display regiontaking two adjacent line segments as adjacent sides includes a pluralityof rows and at least one column of the pixel units, or at least one rowand a plurality of columns of the pixel units arranged along the rowdirection and a plurality of columns of the pixel units arranged along acolumn direction; directions from an intersection point of the twoadjacent line segments to end points of the two adjacent line segmentsother than those at the intersection point are a first direction and asecond direction, respectively; in the parallelogram region, apertureratios of the pixel units arranged in the first direction or/and thesecond direction increase gradually. The display panel provided by atleast one embodiment of the present disclosure can weaken a sawtoothshape at the edge of the display region, so that when the display regionplays a function of display, the sawtooth shape at the edge of thedisplay region is hardly seen, thus a visual effect of the displayregion can be improved.

FIG. 2A is a partial planar view of an edge of a display region in adisplay panel provided by at least one embodiment of the presentdisclosure. As illustrated in FIG. 2A, the display panel includes: aplurality of pixel units 110 arranged in a row direction and in a columndirection. The row direction is a direction parallel to an X direction,and the column direction is a direction parallel to a Y directionherein. The display panel includes a display region 100, and an edge ofthe display region 100 includes a fold line formed by a line segment 101and a line segment 102 (a first line segment 101 extending in the rowdirection and a second line segment 102 extending in the columndirection), the line segment 101 is connected with the line segment 102.A boundary between the display region 100 and a non-display regionshaded by a first light-shading layer 150 is the fold line formed byconnecting the first line segment 101 and the second line segment 102,and for example, the fold line is in a sawtooth shape as illustrated inFIG. 2A, thus the edge of the display region 100 is in a sawtooth shapesurrounded by the fold line. A parallelogram region 120 formed in thedisplay region 100 taking two adjacent line segments which are the firstline segment 101 and the second line segment 102 as adjacent sidesincludes a plurality of rows of the pixel units 110 and at least onecolumn of the pixel units 110, or the parallelogram region 120 includesat least one row of the pixel units 110 and a plurality of columns ofthe pixel units 110, and FIG. 2A illustrates an example where theparallelogram region 120 includes a plurality of rows and one column ofthe pixel units 110. Directions from an intersection point 1011 of thetwo adjacent line segments 101, 102 to end points (for example, an endpoint 1012 of the first line segment 101 and an end point 1032 of thesecond line segment 102) of the two adjacent line segments 101, 102other than those at the intersection point 1011 are respectively a firstdirection and a second direction.

For example, at least one embodiment is described by taking a directionfrom the intersection point 1011 to a first end point 1012 (a directionindicated by an arrow in the X direction) as the first direction and adirection from the intersection point 1011 to the second end point 1013(a direction indicated by an arrow in the Y direction) as the seconddirection. The embodiment is not limited thereto, and the firstdirection and the second direction are interchangeable. In theparallelogram region 120, aperture ratios of the pixel units 110arranged in the first direction or/and aperture ratios of the pixelunits 110 arranged in the second direction increase gradually, so thatupon the parallelogram region 120 at the edge of the display region 100playing a function of display, an overall sawtooth sensation of theparallelogram region 120 is weakened. That is, a sawtooth shape at theedge of the display region 100 is hardly seen, thus a visual effect ofthe display region is improved.

Generally, upon the display region 100 playing a function of display,the more rows or columns of the pixel units 110 in the parallelogramregion 120, the higher luminous brightness in the parallelogram region120, thus, users can obviously feel the sawtooth shape at the edge ofdisplay region 100. Because two adjacent sides of the parallelogramregion 120 are exactly on the fold line (the first line segment 101 andthe second line segment 102) of the display region 100, thus when thedisplay region 100 plays the function of display, the higher thebrightness of the pixel units 110 which are close to the intersectionpoint 1011 of the two adjacent sides, the more clearly the shape of anangle between the two adjacent sides is displayed, so that the userobviously feels the sawtooth shape.

In the parallelogram region 120 of at least one embodiment of thepresent disclosure, aperture ratios of the pixel units 110 arranged inthe first direction or/and aperture ratios of the pixel units 110arranged in the second direction increase gradually (in FIG. 2A, only inthe second direction, aperture ratios of the pixel units increasegradually), that is, in the parallelogram region 120, the closer to theintersection point 1011 of the two adjacent line segments in the foldline of the edge of the display region 100, the smaller the apertureratio of the pixel unit 110. Thus, when the display region plays afunction of display, the sawtooth shape at the edge of the displayregion can be weakened by adjusting the aperture ratios of the pixelunits at the edge of the display region, so that the sawtooth shape atthe edge of the display region is hardly recognized by naked eyes.

For example, a shape of the display region 100 in at least oneembodiment of the present disclosure includes a non-rectangular shape.For example, the shape of the display region 100 may include anirregular shape, such as an approximate circular, an approximatepolygon, etc., thus, the display panel provided by at least oneembodiment of the present disclosure takes an irregular display panel asan example.

For example, as illustrated in FIG. 2A, the row direction and the columndirection are perpendicular to each other, that is, an angle between thetwo adjacent line segments respectively extending in the row directionand extending in the column direction at the edge of the display region100 is a right angle, that is, an angle between the first line segment101 and the second line segment 102 is a right angle, thus theparallelogram region 120 formed in the display region 100 taking the twoadjacent line segments as the adjacent sides is a rectangular region.For example, the row direction and the column direction areinterchangeable in embodiments of the present disclosure.

For example, as illustrated in FIG. 2A, in at least one embodiment ofthe present disclosure, the fold line formed by connecting the linesegments respectively extending in the row direction and the columndirection is extended in an edge of the pixel unit 110 at the edge ofthe display region 100. For example, because the edge of the pixel unitmay not be a strictly straight line segment, the above mentioned linesegments are basically in the edge of the pixel unit.

For example, as illustrated in FIG. 2A, in at least one embodiment ofthe present disclosure, the pixel units 110 are designed in adual-domain mode, and at least one embodiment of the present disclosureincludes but is not limited thereto. For example, the pixel units 110are designed in a single domain mode.

For example, the display panel is described by taking a case that theparallelogram region 120 illustrated in FIG. 2A includes a column andsix rows of the pixel units 110. In the parallelogram region 120,aperture ratios of the pixel units 110 arranged in the second direction(the Y direction) are different.

For example, in a case where an amount of rows of the pixel units 110included in the parallelogram region 120 is less, aperture ratios of twoadjacent rows of the pixel units 110 can be different, so that a changetrend that the aperture ratios of the pixel units 110 in the seconddirection increase gradually is achieved, thus the sawtooth shape at theedge of the display region 100 can be weakened better.

For example, in the parallelogram region 120, in at least one selectedfrom the group consisting of the first direction and the seconddirection, differences of the aperture ratios (differences oftransparent areas) between any two adjacent pixel units 110 are equal,and at least one embodiment of the present disclosure includes but isnot limited thereto.

For example, as illustrated in FIG. 2A, in the parallelogram region 120in an example of an embodiment of the present disclosure, a case wherethe aperture ratios of the pixel units 110 are gradually increased inthe second direction includes the following example. For example, sixrows of the pixel units 110 are arranged in the Y direction, in thepixel unit 110 of a first row, an opening area is ⅙ of a total area; inthe pixel unit 110 of a second row, an opening area of is 2/6 of a totalarea; in the pixel unit 110 of a third row, an opening area is 2/6 of atotal area; in the pixel unit 110 of a fourth row, an opening area is3/6 of a total area; in the pixel unit 110 of a fifth row, an openingarea is 4/6 of a total area; in the pixel unit 110 of a sixth row, anopening area is ⅚ of a total area. A distribution mode of the apertureratios is not limited to the above mentioned mode, as long as it desiresthat in the parallelogram region 120, in the second direction, thechange trend of the aperture ratios of the pixel units 110 is graduallyincreased.

For example, FIG. 2B is a partial planar view of an edge of a displayregion in a display panel provided by another example of an embodimentof the present disclosure. As illustrated in FIG. 2B, in a case where anamount of rows of the pixel units 110 included in the parallelogramregion 120 is greater, two or three adjacent rows of the pixel units 110may have the same aperture ratio, thus in the second direction, anoverall change trend of the aperture ratios of the pixel units 110 isgradually increased.

For example, the display panel is described by taking a case that theparallelogram region 120 illustrated in FIG. 2B includes a column andten rows of the pixel units 110. As illustrated in FIG. 2B, the casewhere the aperture ratios of the pixel units 110 increase gradually inthe second direction includes the following example. For example, theten rows of pixel units 110 are arranged in the Y direction, in thepixel unit 110 of a first row and a second row, an area of an opening is⅙ of a total area; in the pixel unit 110 of a third row and a fourthrow, an area of an opening is 2/6 of a total area; in the pixel unit 110of a fifth row and a sixth row, an area of an opening is 3/6 of a totalarea; in the pixel unit 110 of a seventh row and a eighth row, an areaof an opening is 4/6 of a total area; and in the pixel unit 110 of aninth row and a tenth row, an area of an opening is ⅚ of a total area.The distribution mode of the aperture ratios is not limited to the abovementioned mode, and the aperture ratios of each row of the pixel units110 and the amount of rows of the pixel units 110 with the same apertureratio are designed according to the amount of the rows of the pixelunits 110 in the parallelogram region 120.

For example, FIG. 2C is a partial planar view of an edge of a displayregion in a display panel provided by another example of an embodimentof the present disclosure, and in this example, a single domain designof the pixel units 110 is only schematic, a specific structure of thepixel units 110 can be designed according to actual requirements.

For example, as illustrated in FIG. 2C, each of the pixel units 110includes a plurality of sub-pixels 111 of multiple colors arranged inthe row direction (that is, the direction parallel to the X direction).

For example, as illustrated in FIG. 2C, each of the pixel units 110provided by at least one embodiment of the present disclosure includessub-pixels 111 of three colors which are red, green and blue (RGB), butthe sub-pixels 111 are not limited thereto.

For example, as illustrated in FIG. 2C, in the parallelogram region 120,in at least one selected from the group consisting of the firstdirection the second direction, for example, the first direction (the Xdirection) is taking as an example for description, aperture ratios ofthe sub-pixels 111 having the same color increase gradually. In theparallelogram region 120 in FIG. 2C, filling patterns of thelight-shading layers covering the sub-pixels 111 having different colorsare different, so that shading of the light-shading layers on thesub-pixels 111 having different colors is clearly illustrated.

For example, in the first direction, aperture ratios of blue (B)sub-pixels 111 increase gradually.

For example, in the first direction, aperture ratios of green (G)sub-pixels 111 increase gradually.

For example, in the first direction, aperture ratios of red (R)sub-pixels 111 increase gradually.

In the parallelogram region 120, the aperture ratios of the pixel unitsarranged in at least one selected from the group consisting of the firstdirection and the second direction increase gradually by controlling theaperture ratios of the sub-pixels 111 having the same color in at leastone selected from the group consisting of the first direction and thesecond direction, so that a color cast problem in the parallelogramregion can be reduced.

FIG. 2D-FIG. 2F are partial planar views of an edge of a display regionin a display panel provided by further another example of an embodimentof the present disclosure. For example, as illustrated in FIG. 2D, inthe parallelogram region 120, each sub-pixel 111 in each of the pixelunits 110 has the same aperture ratio.

For example, the display panel is illustrated by taking a case that eachof the pixel units 110 in the parallelogram region 120 includessub-pixels 111 of three colors which are red, green and blue (RGB), thusaperture ratios of the sub-pixels 111 of the three colors in each of thepixel units 110 are the same, but the embodiment of the disclosure isnot limited thereto, and for example, each of the pixel units in theparallelogram region can also include sub-pixels of two colors or fourcolors.

On one hand, because an edge of the first light-shading layer 150 isbasically in the edge of the pixel units 110 in at least one embodimentof the present disclosure, a light-shading area of a region, shaded bythe first light-shading layer 150, of each of the sub-pixels 111 in thesame pixel unit 110 are the same; on the other hand, because theaperture ratios of the sub-pixels 111 in each of the pixel units 110 arethe same, problems of color cast cannot exist at the edge of the displayregion 100, so that a yield and display quality of the display panel areimproved.

For example, as illustrated in FIG. 2D, the parallelogram region 120 inat least one embodiment of the present disclosure includes the pixelunits 110 arranged in a plurality of rows and a plurality of columns,and for example, the parallelogram region 120 includes the pixel units110 arranged in two rows and two columns. In the example illustrated inFIG. 2D, the aperture ratios of the pixel units 110 arranged in thesecond direction increase gradually, and the aperture ratios of thepixel units 110 arranged in the first direction remain unchanged.

For example, as illustrated in FIG. 2E, the parallelogram region 120 inat least one embodiment of the present disclosure includes a pluralityof rows and a plurality of columns of the pixel units 110, and forexample, the parallelogram region 120 includes two rows and two columnsof the pixel units 110. In the example illustrated in FIG. 2E, theaperture ratios of the pixel units 110 arranged in the first directionincrease gradually, and the aperture ratios of the pixel units 110arranged in the second direction remain unchanged.

For example, as illustrated in FIG. 2F, the parallelogram region 120 inat least one embodiment of the present disclosure includes a pluralityof rows and a plurality of columns of the pixel units 110, and forexample, the parallelogram region 120 includes two rows and two columnsof the pixel units 110. In the example illustrated in FIG. 2E, both theaperture ratios of the pixel units 110 arranged in the first directionand the aperture ratios of the pixel units 110 arranged in the seconddirection increase gradually, that is, in a direction from theintersection point 1011 of the two adjacent line segments 101 to acenter of the parallelogram region 120, the aperture ratios of the pixelunits 110 increase gradually. In a case where the parallelogram regionincludes a plurality of rows and a plurality of columns of the pixelunits, both the aperture ratios of the pixel units 110 arranged in thefirst direction and the second direction increase gradually, so thatwhen the parallelogram region plays a function of display, the sawtoothshape is weakened better, thus the visual effect of the display regionis improved better.

For example, FIG. 2G is a partial planar view of an edge of a displayregion in a display panel provided by further another example of anembodiment of the present disclosure. For example, as illustrated inFIG. 2G, the parallelogram region 120 provided by the exampleillustrated in FIG. 2G includes one row and four columns of the pixelunits 110, and an overlapping portion, overlapping with the edge of thedisplay region 100, of an edge of the parallelogram region 120 includesone first line segment 101 extending in the row direction and two secondline segments 102 extending in the column direction. The end point 1013,other than the intersection point with the first line segment 101, ofthe second line segment 102 is connected with a line segment extendingin the row direction in another parallelogram region, that is, thesecond line segment 102 and other line segments connected to the secondline segment in the edge of the display region are not on the samestraight line. The row direction and the column direction mentionedabove can be interchangeable.

In the parallelogram region 120, in two directions respectively from twointersection points 1011 of the first line segment 101 and the twosecond line segments 102 to a midpoint of the first line segment 101(the two directions are respectively an X1 direction and an X2direction, and the midpoint of the first line segment 101 is a cut-offpoint of the X1 direction and the X2 direction), the aperture ratios ofthe pixel units 110 increase gradually, thus, upon the display regionplaying the function of display, a sawtooth shape at a position of theintersection points 1011 of the first line segment 101 and the twosecond line segments 102 can be weakened, so that the sawtooth shape atthe edge of the display region is hardly recognized by naked eyes.

For example, in the example illustrated in FIG. 2G, in the twodirections respectively from the two intersection points 1011 of thefirst line segment 101 and the two second line segments 102 to themidpoint of the first line segment 101, that is, in both of the twodirections respectively from two end points 1011 of the first linesegment 101 to the midpoint of the first line segment 101, the apertureratios of the pixel units 110 increase gradually, but the apertureratios of two pixel units 110 which are closest to the two end points1011 can be the same or different, and a change rate of the apertureratios of the pixel units 110 arranged in the X1 direction and a changerate of the aperture ratios of the pixel units 110 arranged in the X2direction can be the same or different, and the aperture ratios of twopixel units 110 which are closest to the midpoint of the first linesegment 101 at two sides of the midpoint of the first line segment 101can be the same or different, and the example is not limited thereto.

For example, the display panel is described taking that theparallelogram region 120 illustrated in FIG. 2G includes even rows oreven columns of pixel units as an example, and at least one embodimentsof the present disclosure is not limited thereto.

For example, in a case where the parallelogram region 120 includes atleast one row and odd columns of the pixel units 110 or theparallelogram region 120 includes at least one column and odd rows ofthe pixel units 110, the change trend of the aperture ratios of thepixel units 110 is the same as the change trend described above, and anaperture ratio of the pixel unit 110 at the midpoint of the first linesegment 101 is the greatest.

For example, as illustrated in FIG. 2A, each of the pixel units 110 inthe parallelogram region 120 includes a light-shading structure 130, andlight-shading areas of light-shading structures 130 of the pixel units110 arranged in the first direction decrease gradually or/andlight-shading areas of light-shading structures 130 of the pixel units110 arranged in the second direction decrease gradually, so that theaperture ratios increase gradually.

For example, in the embodiment illustrated in FIG. 2A, the light-shadingareas of the light-shading structures 130 of the pixel units 110arranged in the second direction (the Y direction) decrease gradually,so that the aperture ratios of the pixel units 110 arranged in thesecond direction increase gradually.

For example, in the embodiment illustrated in FIG. 2E, in theparallelogram region 120, the light-shading areas of the light-shadingstructures 130 of the pixel units 110 arranged in the first direction(the X direction) decrease gradually, so that the aperture ratios of thepixel units 110 arranged in the first direction increase gradually.

For example, in the embodiment illustrated in FIG. 2F, in theparallelogram region 120, both the light-shading areas of thelight-shading structures 130 of the pixel units 110 arranged in thefirst direction and the second direction decrease gradually, so thatboth the aperture ratios of the pixel units 110 arranged in the firstdirection and the second direction increase gradually.

For example, as illustrated in FIG. 2A, a light-shading layer 140 isbetween adjacent ones of the pixel units 110 (adjacent ones of thesub-pixel units 111). For example, a black matrix is between theadjacent ones of the pixel units 110.

For example, as illustrated in FIG. 2A, the light-shading layer 140between the adjacent ones of the pixel units 110 and the firstlight-shading layer 150 outside the edge of the display region 100 aremade of the same material and/or are formed using the same mask in thesame patterning process.

For example, both the light-shading layer 140 between the adjacent onesof the pixel units 110 and the first light-shading layer 150 outside theedge of the display region 100 are black matrixes.

For example, as illustrated in FIG. 2A, the light-shading structure 130includes at least one sub light-shading structure 131 extending in thecolumn direction, and a shape of the sub light-shading structure 131 isthe same as a shape of a sub light-shading layer 141 extending in thecolumn direction included in the light-shading layer 140, and a size ofthe sub light-shading structure 131 is the same as a size of the sublight-shading layer 141.

For example, the light-shading layer 140 includes the sub light-shadinglayer 141 between the adjacent ones of the pixel units 110 (adjacentones of the sub-pixel units 111) arranged in the row direction, and botha material of the sub light-shading structure 131 and a material of thesub light-shading layer 141 can be a material used for making the blackmatrix.

For example, the sub light-shading structure 131 and the sublight-shading layer 141 are formed by using the same mask in the samepatterning process, so that process steps are saved, and at least oneembodiment of the present disclosure is not limited thereto.

For example, as illustrated in FIG. 2A, in the parallelogram region 120,the light-shading structure 130 in the pixel unit 110 close to theintersection point 1011 includes a plurality of sub light-shadingstructures 131 extending in the column direction and arranged in the rowdirection, and the plurality of sub light-shading structures 131 arearranged continuously in the row direction, that is, no space existsbetween adjacent ones of the plurality of sub light-shading structures131 in the row direction.

For example, FIG. 3A is a schematic diagram of a light-shading structureprovided by at least one example of an embodiment of the presentdisclosure. As illustrated in FIG. 3A, the light-shading structure 130in each of the pixel units in the parallelogram region includes aplurality of sub light-shading structures 131 extending along the columndirection, and the plurality of sub light-shading structures 131 arespaced apart from each other, that is, a space exists between theadjacent ones of the sub light-shading structures 131. In the exampleillustrated in FIG. 3A, the aperture ratio of each of the pixel units110 can be accurately adjusted by adjusting an amount and a width of thesub light-shading structures.

FIG. 3B is a schematic diagram of a light-shading structure provided byanother example of an embodiment of the present disclosure. Asillustrated in FIG. 3B, in the parallelogram region, the light-shadingstructure 130 includes at least one first sub light-shading structure132 extending in the row direction and at least one second sublight-shading structure 133 extending in the column direction.

For example, as illustrated in FIG. 3B, the light-shading structure 130includes a plurality of the first sub light-shading structures 132, andin the column direction, the plurality of the first sub light-shadingstructures 132 are arranged continuously or spaced apart from eachother. The example illustrated in FIG. 3B illustrates a case where theplurality of the first sub light-shading structures 132 are spaced apartfrom each other. In this case, only one second sub light-shadingstructure 133 can be provided, or a plurality of second sublight-shading structures 133 can be provided, and the example is notlimited thereto.

For example, as illustrated in FIG. 3B, the light-shading structure 130includes a plurality of the second sub light-shading structures 133, andin the row direction, the plurality of the second sub light-shadingstructures 133 can be arranged continuously or spaced apart from eachother. The example illustrated in FIG. 3B illustrates a case where theplurality of the second sub light-shading structures 133 are spacedapart from each other. In this case, only one first sub light-shadingstructure 132 can be provided, or a plurality of first sub light-shadingstructures 132 can be provided, and the example is not limited thereto.

For example, as illustrated in FIG. 3B, the example illustrates that thelight-shading structure 130 includes a plurality of first sublight-shading structures 132 and a plurality of second sub light-shadingstructures 133, and both the plurality of first sub light-shadingstructures 132 and the plurality of second sub light-shading structures133 are spaced apart from each other, and the example is not limitedthereto.

For example, in a case where the light-shading structure 130 includesthe plurality of first sub light-shading structures 132 and theplurality of second sub light-shading structures 133, both the pluralityof first sub light-shading structures 132 and the plurality of secondsub light-shading structures 133 can be arranged continuously or spacedapart from each other. In the example illustrated in FIG. 3B, theaperture ratio of each of the pixel units can be accurately adjusted byadjusting an amount and a width of the first sub light-shading structureand the second sub light-shading structure.

Another embodiment of the present disclosure provides a display deviceincluding any one of the display panels provided the at least oneembodiment of the present disclosure, and the sawtooth shape at the edgeof the display region can be weakened by the display device, so thatwhen the display region plays the function of display, the visual effectat the edge of the display region is improved.

For example, the display device can be a display device such as a liquidcrystal display device, an organic light-emitting diode (OLED) displaydevice, and any product or component having a display function, such asa television, a digital camera, a mobile phone, a watch, a tabletcomputer, a notebook computer, and a navigation device that includingthe display device.

For example, the display device can be a variety of display devices withan irregular display panel, and no limitation is imposed to this in theembodiments of the present disclosure.

The following should be noted:

-   -   (1) only the structures involved in the embodiments of the        present disclosure are illustrated in the drawings of the        embodiments of the present disclosure, and other structures may        refer to usual designs;    -   (2) the embodiments and features in different embodiments of the        present disclosure may be combined in case of no conflict to        obtain new embodiments.    -   (3) for the sake of clarity, the thicknesses of layers or        regions are amplified. It is acknowledged that when a component        such as a layer, a film, a region or a substrate is said to be        “above” or “below” another element, the element may be        “directly” located “above” or “below” the another element, or an        intermediate element may exist between the element and the        another element.

What have been described above are only specific implementations of thepresent disclosure, the protection scope of the present disclosure isnot limited thereto. The protection scope of the present disclosureshould be based on the protection scope of the claims.

What is claimed is:
 1. A display panel, comprising: a plurality of pixelunits arranged in a row direction and a column direction, wherein thedisplay panel comprises a display region, an edge of the display regioncomprises a fold line formed by connecting a line segment extending inthe row direction and a line segment extending in the column direction,a parallelogram region formed in the display region taking two adjacentline segments as adjacent sides comprises a plurality of rows and atleast one column of the pixel units, or at least one row and a pluralityof columns of the pixel units, and a direction from an intersectionpoint of the two adjacent line segments to an end point of one of thetwo adjacent line segments other than the intersection point is a firstdirection, a direction from the intersection point of the adjacent twoline segments to an end point of the other one of the two adjacent linesegments other than the intersection point is a second direction; in theparallelogram region, aperture ratios of the pixel units arranged in atleast one selected from the group consisting of the first direction andthe second direction increase gradually; each of the pixel units in theparallelogram region comprises a light-shading structure, andlight-shading areas of light-shading structures of the pixel unitsarranged in the at least one selected from the group consisting of thefirst direction and the second direction decrease gradually, so that theaperture ratios increase gradually; the aperture ratios of the pixelunits in the parallelogram region increase first and then decrease alongthe row direction.
 2. The display panel according to claim 1, whereineach of the pixel units comprises a plurality of sub-pixels of multiplecolors arranged in the row direction, and in the parallelogram region,aperture ratios of the sub-pixels having a same color arranged in atleast one selected from the group consisting of the first direction andthe second direction increase gradually.
 3. The display panel accordingto claim 1, wherein each of the pixel units comprises a pluralitysub-pixels of multiple colors arranged in the row direction, and in theparallelogram region, each sub-pixel in each of the pixel units has asame aperture ratio.
 4. The display panel according to claim 1, whereinan overlapping portion of an edge of the parallelogram region and theedge of the display region comprises one first line segment extending inthe row direction and two second line segments extending in the columndirection.
 5. The display panel according to claim 1, wherein alight-shading layer is between adjacent ones of the pixel units, and amaterial of the light-shading structure is the same as a material of thelight-shading layer.
 6. The display panel according to claim 1, whereinthe light-shading structure comprises at least one sub light-shadingstructure extending in the column direction, a sub light-shading layeris provided between every two sub-pixels adjacent in the row direction,and the sub light-shading structure has a same shape and a same size asthe sub light-shading layer.
 7. The display panel according to claim 6,wherein the light-shading structure comprises a plurality of sublight-shading structures each of which extends in the column direction,and in the row direction, the plurality of sub light-shading structuresare arranged continuously or spaced apart from each other.
 8. Thedisplay panel according to claim 6, wherein along the column direction,a count of the sub light-shading structure comprised in thelight-shading structure in each pixel unit in the parallelogram regiondecreases gradually.
 9. The display panel according to claim 6, whereina count of the sub light-shading structure comprised in thelight-shading structure in each of sub-pixels in a same row in theparallelogram region is equal.
 10. The display panel according to claim1, wherein the light-shading structure comprises at least one first sublight-shading structure extending in the row direction and at least onesecond sub light-shading structure extending in the column direction.11. The display panel according to claim 10, wherein the light-shadingstructure comprises a plurality of first sub light-shading structures,and in the column direction, the plurality of first sub light-shadingstructures are arranged continuously or spaced apart from each other.12. The display panel according to claim 10, wherein the light-shadingstructure comprises a plurality of second sub light-shading structures,and in the row direction, the plurality of second sub light-shadingstructures are arranged continuously or spaced apart from each other.13. The display panel according to claim 1, wherein the row directionand the column direction are perpendicular to each other, and theparallelogram region is a rectangular region.
 14. The display panelaccording to claim 1, wherein a shape of the display region comprises anon-rectangular shape.
 15. A display device, comprising the displaypanel according to claim
 1. 16. The display device according to claim 1,wherein the increasing rate is same as the decreasing rate.
 17. Thedisplay device according to claim 1, wherein the increasing rate isdifferent from the decreasing rate.